Brake mechanism for vehicles.



' Pat-gntedAug. 20,1918. I

E. L. WEAVER. BRAKE MECHANISM FQR VEHICL ES.

APPLICATION FILED OCT-10.1917- 'hmh i side elevation on useful BrakeMechanism en rants enrich.

EZRA L. WEAVER,

or 'ronnno, OHIO, nssronon or onnnsnr TO GEORGE :L', MADDEN,

or 'roLnno, OHIO.

serum mnonamsnt' roe. vnnicnss.

Specification of Letters Patent.

Patented Aug. 2%., 1m 8.

Application filed october 10, 1917. Serial No. 295,705.

To all whom it may concern Be it known that I, EZRA L. lvnavltefacitizen of the United States, and ares'rdent of Toledo,.in the county ofLucas andstate of Ohio, have invented a certain new and for Vehicles;and I do hereby declare the following to be a full, clear. and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being badto the accompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

This invent-ion relates to brake-control means for motor vehicles, andhas for its object the provision of a simple and im proved mechanism ofthis character, which is connected to a plurality oi brake members allof said n'iember's.

braking pressure on when applying a braking action thereto,

thereby preventing the skidding which goe curs when the brakes of i'ehicle are applied with unequal pressure, and also avoiding otherobjections incident to the unequal application of the brakes ondifferent Wheels of a vehicle, as is well understood in. the art.

A further object provision of a brakecontrol mechanism for vehicles,which has connection. with a single brake for each of the brake wheelsand is operable by either the customary brake pedal or emergencybrake-lever of a motordriven vehicle. A further object. of my inventionis the provision of a single control means for vehicle-brakes, which.eliminates the use of the numerous draft-rods and connecting-'rleversheretofore employed, and

therefore lessens the liability of noise and Figure 1 is a top plan Viewof a portion of an automobile chassis embodying the in vention'. Fig. 2is an enlarged perspective view, and Fig. 3 an enlarged sectional detailof the pressure equalizing means of the inventicn. Fig. t is an enlargedsection on the line H in Fig. 1, and Fig. 5 is an enlarged the line 5-5in Fig. 1.

of my invention is the I axle housing 2, at

Referring to the drawings, 1 designates a chassis-frame. 2 the rear axlehousing, and 3', 3 the rear drive-wheels of a motor-driven vehicle, eachof said drive'wheels being pr0- vided with the customary brake-drum 4,which is engaged internally thereof by anerpanding, friction brake-ring5. This ring is split at one side with the ends thereofcircumferentially spaced and provided with radially broadened surfaces6, between which an expanding block 7 is mounted, whereby a movement. ofsuch block from normal position will effect an eroansion of the ring 5into braking engagement with thedrurn 4, as is apparent. The ring 5 iscarried at a point sul'istantially diametrically opposite its splitportion by a stud 8, which projects from. the customary enlargement orbracket at the adjacent end of the housing- 2 and enters the radiallyelongated slot.- of a lug 9, that is carried by the ring 5 internallythereof. It.

is evident that. the slotted connection of the movement of the centralportion of the ring out of engagement with the drum 4: when the ring isin collapsed position. A coiled contractile spring 10 acts on the ring 5t0 normally retain it in'collapsed position.

A shaft is mounted at. one side of the rear the rear thereof, in the"present instanoe, 3md comprises the two sections 11 and 12, which havetheir inner ends preferably telescoped for relative rotary movements andjournaled in the arms of a bearing-fork l3 projecting from the rear oo"axle housing". The outer ends of these shafts sections fixedly carrythebrake expanding blocks 7 of the respective brakes.

A bevel-gear segment 14 is loosely mount ed'on the inner end portion ofone, of said on shaft-sections, 12in the present instance, between thearms of the bearing-forkl3 and has-a boss 15 radially projectingrearward from its vhubsleeve and carrying a crossarm 16 ftir pivotalturning movements relative' thereto, said cross-arm beingheld to theboss --by a screw 17. One end of the cross-arm l6 loosely enters anopening 18 in 4 an arm 19, which fixedly projects rearwar from the shaft11, while the other end of said arm loosely enters an opening 20 in anarm 21, which fixedly projects rearward from the shaft-section 12. 'Itis thus evident that when a turning movement is imparted to thegearsegment 14. the crossthc present instance, may cicsigimtc thecimibioci, which is connscfcii to and 8K- Qficnds rem-Ward from thelower end of th s foot-penis; (not Shawn), anti the draft :a'oai whichis connected to and extends reap Ward from the lower coo; of theemergency bmkcicvcr (not shown). Both of ihcsc rods may have their rearends iong'itudi naily siccincd, as at 2 (Fig. 5}, and loosely receivinga bolt Iii-ejecting crosswise through ihc outer and of zinc rocks -411m26 which is mounted on a shaft 2?, that is joucnalcd in a bearingyckebevel-gear scgn'icnc is fixedly conncctcd 0 iiic inner sleeved andposition of the rocker-arm 2 5 and is in mesh with c, bcvci-g 36, theshaft 31 oi which journal ed 11 the 28 one} bearing-fork and has cnciprovided with a bsvckgcar 32 in mesh with gzcar scgmcnt TA. The. 3i Emsa. flexible joint 33 intci'mediatc i'i's cnds.

It is evident that the siiding connection of each draft-rod 22 23 withthe rocker-- arm 26 enables either of said lOdS to have a hicks-applyingl'IlOVEITiQHiJ imparted thcrcto witiioui; moving; thcother and thaisuch. bmksapplying movement is ccnlmunica'iicci through thc shaft 31 tthe gccr-scgmcn't 1% and lost motion compei'lsating means assc oiatccithey-swish.

With his of braizc-ccicirci. {who nu merous K'OCiS and coimccting icvcrscustcmariiy employed in connection with the bmko contrci mechanism ofvehicles are Mimi missions} controbmechzmism substituted therefor, whichis less liabic (.0 become loose and minis during use.

i wish i6 understood that my invention is 110?, limited to any specificconstruction, ari'migemcnt or form of the paris, as it is ca c .piibicof numerous modifications and changes withoutdeparting from the spiritof the claims.

Having thus described my invention what claim. as new, and desire cosecure bf Lcften: Patent, is-- i The combination with twp brakes, of aSsC/tiOIfiii. operating shaft ihercifcr, an arm fixedly projecting "fromeach shaft-section, a 1-! JDlbGl loosely mounted on one of suiiisections between said arms, meu ns connecting said member and arms 0rimparting rotation to thc arms in the same direction when i'hc member isrotated and to permit a limitcii rciativc movement of the arms tocom-fio pcnsnte for 10% motion, operating means for impaning rotation tosaid member, said operaiing means comprising a shaft in gearedconnection Wiih saio member, a 1'0Ci01--U1Z1.in geared conneciiio iWii'hsaid scuff, and? sepzimlic opcm'ing craft-rods in pin and. sioi;connection with said rocker- 2. in brake mechanism for VGhiCiQS, a17min; Sim-ft extci'iding' longitudinally of the vehicle, opemiingconnection between. said shaft and brake, a motion converting. membermovaioic longitudinally of the veincic, connccticn between said memberand shaft for importing rotation. to the latter from movcmcnts theformer, and a plula-iity of n'iammiiy contra icdlamke operatwiwclaimants in scpaiutc pin anai siot connec- Lion with ssld mcmbcz"whereby said 111cm.

may he opcmtcai by a movement of 1 maof said in issiii'nony' v. ,rcoif,I have hereunto A s v 4 sigiicd name to s cclficatlcn.

